I made the strawberry sponge cake from here today, replacing the strawbs with raspberries as that's what I had inhttp://www.lowcarbdiabetic.co.uk/Recipes.htm
and I must say I was very pleasantly surprised. I know whatever you lash in whipped cream and fresh fruit is bound to taste nice but the sponge was pretty good, very moist and lovely texture and the easiest cake I have ever made! Five minutes to weigh out and mix the ingredients and three minutes in the microwave and you're done. No, it isn't like full sugar cake but for a low-carbing diabetic who is careful what they eat, like pretty much all of us on here, this is great for a treat.
You could add vanilla or almond essence to the mixture and I think adapted slightly would be a good base for different puddings.
Not sure how to add a photo on here, otherwise I would. I am not the world's best cake decorator but just wanted to give you an idea of what it looks like.